Thermal DRI Range Table | ||||
Focal Length | 25 mm | 50 mm | 75 mm | 100 mm |
Detection Distance (Humans: 1.8×0.5m) | 1,042 m (3,418.6 ft) | 2,083 m (9,196.2 ft) | 3,125 m (10,252.6 ft) | 4,167 m (13,671.3 ft) |
Detection Distance (Vehicles: 4×1.5m) | 3,194 m (10,479 ft) | 6,389 m (20,961 ft) | 9,583 m (31,440.3 ft) | 12,778 m (41,922.6 ft) |
Recognition Distance (Humans: 1.8×0.5m) | 260 m (853 ft) | 521 m (1,709.3 ft) | 781 m (2,562.3 ft) | 1,042 m (3,418.6 ft) |
Recognition Distance (Vehicles: 4×1.5m) | 799 m (2,621.4 ft) | 1,597 m (5,239.5 ft) | 2,396 m (7,860.9 ft) | 3,194 m (10,479.0 ft) |
Identification Distance (Humans: 1.8×0.5m) | 130 m (426.5 ft) | 260 m (853 ft) | 391 m (1,282.8 ft) | 521 m (1,709.3 ft) |
Identification Range (Vehicles: 4×1.5m) | 399 m (1,309 ft) | 799 m (2,621.4 ft) | 1,198 m (3930.5 ft) | 1,597 m (5,539.5 ft) |
Note: The table is only for reference and the performance may vary according to different environment. Note: The optimal detection, recognition, and identification distances are calculated according to Johnson’s Criteria. Detection Range: In order to distinguish an object from the background, the object must be covered by 1.5 or more pixels. Recognition Range: In order to classify the object (animal, human, vehicle, etc.), the object must be covered by 6 or more pixels. Identification Range: In order to identify the object and describe it in details, the object must be covered by 12 or more pixels. | ||||
Thermal Smart Detection Range Table | ||||
Focal Length | 25 mm | 50 mm | 75 mm | 100 mm |
VCA Detection Distance (Human: 1.8 × 0.5 m) | 101 m (331.4 ft) | 235 m (771 ft) | 336 m (1,102.4 ft) | 470 m (1,542.0 ft) |
VCA Detection Distance (Front/Rear of Vehicle: 4×1.5 m) | 230 m (754.6 ft) | 400 m (1,312.3 ft) | 630 m (2,066.9 ft) | 800 m (2,624.7 ft) |
Temperature Measurement (Object: 0.2 × 0.2m) | 83 m (272.3 ft) | 167 m (547.9 ft) | 250 m (820.2 ft) | 333 m (1,092.5 ft) |
Fire Detection (Object: 0.2 × 0.2m) | 208 m (682.4 ft) | 417 m (1,368.1 ft) | 625 m (2,050.5 ft) | 833 m (2,732.9 ft) |
Note: The table is for reference only. The distances within it are subject to actual conditions including atmospheric conditions, target size, the installation site, and more. | ||||
Visible DORI Range Table | ||||
Lens | 6.8 to 251 mm | |||
Detection | 95 to 3,515 m (311.68 to 11,532.15 ft) | |||
Observe | 38 to 1,406 m (124.67 to 4,612.86 ft) | |||
Recognize | 19 to 703 m (62.34 to 2,306.43 ft) | |||
Identify | 9.5 to 351.5 m (31.17 to 1,153.22 ft) | |||
Note: DORI (Detect, Observe, Recognize, and Identify) is a standard system (EN-62676-4) for defining the ability of a person viewing the video to distinguish persons or objects within a covered area. The numbers in this table do not reflect intelligent function distances. For intelligent function distances, refer to installation and commissioning manual/project design tool. | ||||
